Company lists · Data refreshed September 2026
Top 25 Big 4 business consulting firms based in Mumbai, India
RevenueBase identified 205 big 4 business consulting firms headquartered in Mumbai, India as of September 2026 and tracks 21,921 professional contacts across them, including 5,703 with verified work emails. Mumbai is the largest hub.
This list covers big 4 business consulting firms headquartered in Mumbai, India, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 21, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest big 4 business consulting firms based in Mumbai, India
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 6,148 contacts → | ||||
Indirect evidence “BDO India is the Indian member firm of BDO, the world’s fifth-largest professional services organisation, operating in 166 countries and territories with a team of over…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 2 | 809 contacts → | ||||
Indirect evidence “CNK & Associates LLP (CNK) is a multi-disciplinary firm specializing in providing a wide spectrum of professional services under one roof to leading domestic and multinational…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 3 | 641 contacts → | ||||
Partial evidence “Lodha & Co LLP is one of the leading home grown accounting and consulting firms in India.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 4 | 601 contacts → | ||||
Indirect evidence “Founded in 1934, by two gentlemen to whom integrity was paramount, Mr.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 5 | 510 contacts → | ||||
Partial evidence “KNAV is a dynamic global accounting and consulting firm, offering a comprehensive range of services including accounting, assurance, taxation, international transfer pricing…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 6 | 444 contacts → | ||||
Indirect evidence “ANB is a fully-integrated and one of the fastest growing assurance and business advisory firm, with 450 plus employees and presence in 6 countries.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 7 | 393 contacts → | ||||
Indirect evidence “Assurance | Tax | Technology” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 8 | 342 contacts → | ||||
Indirect evidence “InCorp Group is one of APAC’s leading professional services firms headquartered in Singapore.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 9 | 276 contacts → | ||||
Indirect evidence “Established in 1978, MSKA & Associates is an Indian partnership firm registered with the Institute of Chartered Accountants of India (ICAI) and the PCAOB (US Public Company…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 10 | 274 contacts → | ||||
Strong evidence “Transaction Square is a Tax, Regulatory and Business Advisory firm founded by entrepreneurial Big-4 Partners having collective advisory experience spanning over 3 decades.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 11 | 199 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 12 | 196 contacts → | ||||
Partial evidence “Waaree Energies Private Limited is a management consulting company based out of 602, 6th FloorWestern Edge - IWestern Express Highway, Mumbai, India.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 13 | 146 contacts → | ||||
Indirect evidence “M M NISSIM & CO LLP (MMN) has been in professional practice from the year 1946.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 14 | 121 contacts → | ||||
Partial evidence “Crowe Advisory Services (India) LLP, a member of Crowe Global since provides Risk Advisory, Corporate Finance, Taxation, Business Advisory, Digital Security Consulting, Data…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 15 | 112 contacts → | ||||
Indirect evidence “Banshi Jain and Associates is a leading multi-disciplinary firm rendering focused professional services in areas of Assurance, Taxation, Startup Advisory and Transaction Advisory.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 16 | 111 contacts → | ||||
Indirect evidence “B.K.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 17 | 94 contacts → | ||||
Indirect evidence “Established in B D G & Co LLP (formerly known as B D G & CO and B D G & Associates) stands as a testament to enduring excellence in various professional services.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 18 | 79 contacts → | ||||
Partial evidence “Radisson Consulting LLP is an accounting and consulting organization driven by young and dynamic team of professionals with the mentoring of experts drawn from a broad range of…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 19 | 64 contacts → | ||||
Indirect evidence “We at ZADN are committed to provide strategic, operational, accounting, tax and regulatory guidance across our service verticals which ensures the successful design and…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 20 | 55 contacts → | ||||
Partial evidence “We are a leading professional services organization, offering a complete range of services in the field of assurance, consulting, taxation, and financial advisory services.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 21 | 55 contacts → | ||||
Indirect evidence “Sorab S.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 22 | 51 contacts → | ||||
Partial evidence “HSAG Consulting Private Limited is a multidisciplinary advisory firm helping businesses strengthen finance, compliance, HR, governance and operational clarity for long-term growth.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 23 | 47 contacts → | ||||
Indirect evidence “Taxpert Professionals is a dynamic conglomeration of multi-disciplinary experts specializing in accountancy, taxation, legal, and corporate advisory services.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 24 | 38 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 25 | 38 contacts → | ||||
Indirect evidence “Affluence Advisory has been established with a vision to provide one stop solutions to clients’ needs amidst ever-changing environment.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: big 4 business consulting firms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names big 4 business consulting firms.
- Partial evidence
- Its own public description names part of big 4 business consulting firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name big 4 business consulting firms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 205 big 4 business consulting firms based in Mumbai, India
See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 5,703 reachable decision-makers.
Free signup · no credit card
Big 4 business consulting firms based in Mumbai, India at a glance
As of Sep 21, 2026Companies by employee count
Email recency for this list is measured across the whole India list rather than for Mumbai, so it is reported there. Company counts and contact totals on this page are exact for Mumbai, over 205 companies.
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among big 4 business consulting firms, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in Mumbai, India whose own description of what they do matches “big 4 business consulting firms”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names big 4 business consulting firms), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among big 4 business consulting firms, and records with no verified work email. Companies headquartered outside Mumbai are excluded even when they keep an office there.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every listed company carries at least one verified work email, 5,703 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on September 21, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Big 4 business consulting firms by metro in India
- Big 4 business consulting firms in Mumbai205
- Big 4 business consulting firms in New Delhi186
- Big 4 business consulting firms in Pune93
- Big 4 business consulting firms in Chennai86
- Big 4 business consulting firms in Delhi86
- Big 4 business consulting firms in Bangalore80
- Big 4 business consulting firms in Hyderabad75
- Big 4 business consulting firms in Kolkata75
- Big 4 business consulting firms in Ahmedabad70
- Big 4 business consulting firms in Bengaluru69
- Big 4 business consulting firms in Gurgaon45
- Big 4 business consulting firms in Noida43
- Big 4 business consulting firms in Gurugram39
- Big 4 business consulting firms in Jaipur38
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names big 4 business consulting firms, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many big 4 business consulting firms are there based in Mumbai, India?
RevenueBase identified 205 big 4 business consulting firms headquartered in Mumbai, India as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
BDO India, headquartered in Mumbai, tops this list with the largest team on record.
Which city has the most big 4 business consulting firms?
Mumbai leads with 205 headquartered companies, followed by New Delhi (186) and Pune (93).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 5,703 verified decision-maker contacts tracked across these 205 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 21, 2026.
Ready to reach these companies? Verified emails and direct dials for all 205 big 4 business consulting firms based in Mumbai, India. Start with a free account, no credit card.
Download this list →Related lists
Big 4 business consulting firms by geography
- Big 4 business consulting firms based in Brisbane, Australia
- Big 4 business consulting firms based in Canberra, Australia
- Big 4 business consulting firms based in Melbourne, Australia
- Big 4 business consulting firms based in Sydney, Australia
- Big 4 business consulting firms based in Belo Horizonte, Brazil
- Big 4 business consulting firms based in Campinas, Brazil
- Big 4 business consulting firms based in Curitiba, Brazil
- Big 4 business consulting firms based in Porto Alegre, Brazil
- Big 4 business consulting firms based in Recife, Brazil
- Big 4 business consulting firms based in Rio De Janeiro, Brazil
- Big 4 business consulting firms based in Salvador, Brazil
- Big 4 business consulting firms based in Sao Paulo, Brazil
About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Big 4 business consulting firms based in Brisbane, Australia
- Big 4 business consulting firms based in Canberra, Australia
- Big 4 business consulting firms based in Melbourne, Australia
- Big 4 business consulting firms based in Sydney, Australia
- Big 4 business consulting firms based in Belo Horizonte, Brazil
- Big 4 business consulting firms based in Campinas, Brazil